Motor vehicle regenerative control and brake lamp control

Abstract

The invention relates to an energy regenerative control method and module used for motor vehicles, especially electric vehicles or hybrid vehicles. A motor is arranged on an axle of the vehicle and used for driving a driving wheel on the axle to rotate. The vehicle further comprises a charging battery connected with the motor electrically. The method includes detecting and judging whether an accelerator pedal and a brake pedal are pressed or released when the vehicle runs, switching the motor to the generator mode to generate brake torque stopping rotating of the driving wheel when the accelerator pedal and the brake pedal are both in the release state, wherein the brake torque is converted into electric energy through a generator to be stored in the charging battery. A brake lamp control method and module for the motor vehicles, especially the electric vehicles, is further provided. Under the condition that the accelerator pedal and the brake pedal are both released, the deceleration of the vehicle determines whether to turn on or turn off a brake lamp.

Description

technical field [0001] The present invention generally relates to energy regenerative control methods and modules that can be employed in non-braking situations in electric or hybrid vehicles. Furthermore, the present invention generally relates to a brake light control method and module that can be employed in non-braking situations. Background technique [0002] In a conventional electric vehicle, electric motors may be provided on one or both axles to rotate the drive wheels on the axles. In the case of braking, the motor is switched from a motor state to a generator state, so that the rotor of the motor can move to cut the magnetic field lines generated by the stator of the motor. In this way, the braking energy of the car is converted into electrical energy, which is then stored in a rechargeable battery and subsequently used for other purposes. [0003] Generally, a regenerative braking system (RBS) is provided in an electric vehicle, and energy generated by braking ...

AI Technical Summary

Problems solved by technology

Therefore, in this non-braking situation, if certain conditions are met (for example, the car slows down to a certain speed) and the brake lights are turned on to warn the cars behind, the possibility of rear-end collisions will be greatly reduced.

At the same time, the brake light switch in conventional cars is a purely mechanical structure

If this brake light switch is turned on and off at a high frequency, the probability of failure is high and thus threatens the safety of the car

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